A haemolytic transfusion reaction will occur when
1.A blood is transfused into an AB patient
2.AB blood is transfused into an O patient
3.O positive blood is transfused into an O negative patient
4.O negative blood is transfused into an AB positive patient
Haematopoietic stem cells give rise to all these excep
1.: dendritic cells
2.Kupffer cells
3.mast cells
4. fibroblasts
Haemolytic disease of the newborn
1.develops signs and symptoms after delivery
2.is most common in Asia
3. occurs in Rh D + infants of Rh D – mothers
4.occurs in Rh D - infants of Rh D + mothers
Lymphatic fluid
1.absorbs water-insoluble dietary fat
2.contains anticoagulant substances
3.does not normally contain white blood cells
4.has a higher protein content than plasma
Normal haemoglobin is made up of
1.2 alpha globin chains, 2 beta globin chains & 2 heme moieties
2.2 alpha globin chains, 2 beta globin chains & 4 heme moieties
3.2 alpha globin chains, 1 beta globin chain & 3 heme moieties
4. 4 alpha globin chains & 4 heme moieties
Plasmin
1.is inhibited by tissue factor pathway inhibitor
2.is not present in normal blood vessels
3.is secreted by activated plasma cells
4.lyses fibrin and fibrinogen
Platelets have
1.a half life in the circulation of 4 days
2.an average size of 1/10th that of a RBC
3. blood group antigens on their cell membranes
4.small, dense nuclei
The intrinsic system of clotting factor activation requires
1.factor VIIa
2.HMW kininogen
3.tissue thromboplastin
4.von Willebrand factor
The normal liver does not synthesise this protein
1.alpha feto protein
2.fibrinogen
3.immunoglobulin
4.insulin-like growth factor
The oxygen affinity of the Fe++ site in heme is increased by
1.acidosis
2.alkalosis
3.decreased NADH-metHb reductase activity
4. increased 2,3 bisphosphoglycerate